EIS general secretary Larry Flanagan said: “It is clear that the current situation is unsustainable and that urgent steps must be taken by the Scottish Government, local authorities and national education bodies to reduce the crippling workload burden that is being placed on Scotland’s teachers.

“The workload picture is similar for teachers in all sectors and at all grades, and for teachers on full-time contracts or part-time contracts.

“No matter what the individual contractual commitment, the evidence gathered during the fortnight focus demonstrates that high levels of additional working are the norm for Scotland’s teachers.”